Adapter joint for pipes



Feb. 8, 1949 H, L, ITE 2,461,100

ADAPTER JOINT FOR PIPES Filed Feb. 16, 1945 2 Sheets-Sheet 1 7 10 [/AQOLD l. Vii/#5,

' INVENTOR.

ATTORN EY.

H. L. WHITE ADAPTER JOINT FOR PIPES Feb. 8, 1949.

Filed Feb. 16, 1945 2 Sheets-Sheet 2 E1204 0'. L. W n75,

IINVENTORQ ATTORNEY.

-connecting the-end'ofa pipetosome'fcrm of rigid i4 and thejpipe being filled in with neat cement structure. 1 caulking, as illustrated-at l5. 7

This joint is designed for'forming aconnection The spigot ring HS DIOVided With external Patented Feb. 8, 1949 Z ILEG I ADAPTER JOINTFO'R PIPES -H2ii0idLfiWhiiB, San Marino, (lalif assignor to American Pipe'and Construction (30., a corporation of Delaware Application February 16, 1-945, Serial No. 578,215

.5 Glaims. (01. 285-112) 1 2 'This invention relates to an adapter joint for :pipe section, the-space between the ring or band TENT sorricn bet .t tructures. such as, f r instance, a groove indicated at-lTfor receiving a continuous cement pipe and a junction chamber, a valve box elastic band or member it. When the spigot asor other rigid structure where there is a probsembly is s r t d of t p pe Sectifln ability of differential settlement or unequal move- IE as above described, the inner face of thesp ot Jment'.between thepipe and such structure. Such I irom the endof the p 99 t the end mo m t is generally not large in terms of of the ring H is fillediin to the inner diameter linches butit is great-'enough tocause the crackof the pipe with cement mortar indicated at l9, of'a li'gid'structure or the breaking of the the inner face ofthecement mortar lining being aback "oi theadjoining :pipe. :Such cracking is shed off to the same diameter as the-inner dangerous inasmuch as sufiicient leakagermay diameter of the p p result as to-causel'a washout of one or both of =9 des ate a fi d mb r, asiillustmted, the-adjoining.structures, resultingina repair job constituting the concrete wall of a junction t w t niy djmcult but expengive chamber or similar structure. Mounted in this It isthe object of this invention toprovide ah well isva bell assemb y o weceiv g S o adapter joint of simple form and construction by assembly of t end of the pi 56013101!- This {means of which, the end of the pjpe'rnay joined 20 bell assemblycomprises. a-bell ring indicated at .to airigi'd tr t so as t n for eag -2l,athe.inner endzof which is Welded to..a cylintial settlement between the pipe and structure drical gasindicatedabzi be l Ting without-impairing eitherthe pipe or'such struc- 2| and. cylindrical .ring s22, which may be conture. sidere'd a unitary member, are placed within an 'Other objectsand 'advantagesw-illappear here- 25 opening formedinthe wall structure and through =inafter from the following description-and draw which the contents Of t e who s o e discharged :ings. into the chamber, the cylindrical ring being' rein- Referring to'the drawings, which are for illusfo c a securely h place ymeans of a trative purposes only: circular flange indicated .at24, the inner edge- Fig. 1-is an elevational View of .the' of a of which rests upon and is 'weldedtothe ring 22 .pipe sec-tion-showing-a form of adapter joint ccnasindicated at necting the pipe section to -arigid structure such The inner face of the ring 22 and bell ring?! ,chamberiof any kindinto -Which-the pipe is filled in with cement mortar lining indicated discharges; at 21. This extends part-way through the open- .Fig. 2 is an enlarged sectional vie-w en line ing in the wall and .forms a shoulder indicated at 2-2, Fig. 1; r '28 against which the spigot'ring of the pipe abuts. .Fig. ..3. is anaelevational view partly in section The connection between thepipe and stationary .showinga modified-iorm of the joint connecting member is made by telescoping the spigot ring .theeend-of the pipe section t a -m-eta1 flange I! ofthe pipe into'the bell ring 2! of the strucsuch as may be used fora tachment'to a valve 40 ture, such bell ring beingfianged outwardly at orotherstructurepand the entrance into lthe'pipe as. indicated at 3t to Fig. 4 is an enlarged sectional View on line facilitate the insertion of the spigot ring. As 44, Fig.3. "the'spigot ring ll slips "into the'bell ring the Referring more particularly to the drawings rubberiband l8'is compressed, forming a tight and to the formof adapterjoint shown in Figs. jointbetweenthe twostructures and allowing for 1 and 2, It indicates the end of a concrete pipe some angular movement between the [pipe and section. =Inthis form of "my 2 invention is illusother-structure, it being understood that the end trated an adapter provided with a spigot ring inof the spigot ring ll :engages the shoulder 28 dicate'd' at H. The inner .end of this ring is formed. in the'structure by the lining indicated 'iWlde'd'toa circui'arplate l2 as indicated at I3. at 21. After the two structures'havebeenjoined "This circular plate is'placed against the end of as just described a cement'mortar coating indithe pipe section I l] 'andiisprovided with a cylincated at 3| is placed aroundthe exposed portion drical .band or member M welded to the outer of the adapter on the end of the pipe.

portion of the ring 12 as'indicated at-l-5. .This In the form of my invention shown in Figs.

cylindrical ring [4 extends over'the end of then-{ 5 -3..ar1'd'4"the cementpipe is shownattached to a structure connecting member such as a flange which is adapted for connecting the pipe to a valve. As illustrated, the cement pipe i is provided with a circular ring designated at 35 which is placed against the end of the pipe section Hi. This ring has attached to it a cylindrical member 36 as by Welding indicated at 31. This cylindrical member 38 is spaced apart from the outside of the pipe and extends over the end of the pipe a short distance, as shown. The ring 35 and cylindrical member 36 are held in proper relation to the pipe by means of a neat cement caulking as illustrated at 36.

Extending forwardly from the ring 35 is a bell ring indicated at 35 which is secured to the ring 35 by means of welding indicated at 39. The outer end of the bell ring 38 is flared outwardly as indicated at 40 so that the bell ring will slip over the spigot ring hereinafter referred to. 52 indicates a metal flange which is adapted for connection to a valve or other structure. Welded to the flange 52 as indicated at 43 is a spigot ring M, the outer end of which is received in the bell ring 38, bein provided with a circumferential groove indicated at 55 to receive a resilient'packing member or ring indicated at 46 which engages the inside of the bell ring 38. The flange '52 has an opening therein indicated at 58 of the same internal diameter as the pipe I0 and the inside of the bell ring 38 and spigot ring 44 is filled in with a cement mortar lining indicated at i finished internally to the same diameter as the inside of the pipe and the opening 50 through the flange 42.

It will be understood that prior to the filling in of the lining 5! the pipe has been moved so that the spigot ring i lis received in the bell ring 38, as shown in Fig. 4 of the drawings. After the parts are in place a covering or cement mortar coating indicated at 53 is placed about the adapter consisting of the cylindrical member 36, ring 35 and bell ring 38 so as to form a protective covering for the adapter on the end of the pipe In both forms illustrated and described above it will be readily understood that the pipe may have some difierential or unequal movement with relation to the structure to which it is attached by reason of the bell and spigot joint formed therebetween as above described without the customary cracking of the structure when such unequal movement is not compensated for. A very small relative movement between the two structures at the point of connection will allow a considerable movement of the pipe with relation to the structure at some distance from the pipe without disruption of the joint between the two structures and without any damage to the pipe which would otherwise be considered in such cases as a rigid connection is made between the pipe and other structure and no allowance made for the differential, movement or settlement of one of the structures.

Although one form of the invention has been particularly shown and described, it is contemplated that various changes and modifications can be made without departing from the scope of the invention and it is intended to cover such changes and modifications as come within the scope of the claims.

I claim as my invention:

1. An adapter joint for connecting a concrete pipe to relative stationary structures comprising: an adapter member on the end of the pipe having a circular metal ring faced on the end of the pipe; a cylindrical ring on the circular ring extending over the end portion of the pipe and spaced apart therefrom adapted to receive caulking therebetween; a telescoping member on said circular ring; a telescoping member on the stationary structure; and a yieldable ring between the telescoping members.

2. An adapter joint for connecting a concrete pipe to relative stationary structures comprising: an adapter member on the end of the pipe having a circular metal ring faced on the end of the pipe; a cylindrical ring on the circular ring extending over the end portion of the pipe and spaced apart therefrom; caulking between said cylindrical ring and the pipe; an adapter member on the stationary structure having a cylindrical band; an outwardly extending circular flange secured to said cylindrical band embedded in the stationary structure; a bell ring on one of said adapter members; a spigot ring on the other of said adapter members; and yieldable packing means between the bellrring and the spigot ring.

3. An adapter joint for connecting a concrete pipe to relative stationary structures comprising: an adapter member on the end of the pipe having a circular metal ring faced on the end of the pipe; a cylindrical ring on the circular ring extending over the end, portion of the. pipe and spaced apart therefrom; caulking between said cylindrical ring and the pipe; one member of a bell and spigot joint-on said adapter member; the. other member of a bell and spigot joint on said stationary member; and a yieldable ring between the said bell and spigot members,

4. An adapter joint for connecting a concrete pipe to a relative stationary structure having a fluid opening therethrough comprising: an adapter member on the end of the pipe comprising, a fiat'circular ring faced on the end of the pipe and a cylindrical band on said circular ring extending over the end portion of the pipe spaced apart from the pipe; caulking between said cylindrical band and the pipe; an adapter member anchored in said stationary member about the fluid opening therein; a bell ring on one of said adapter members; a spigot ring on the other of said adapter members; and a resilient band between the bell and spigot rings.

5. Adapter means for use in providing a metal extension on the end of a concrete pipe, comprising a flat circular metal ring adapted to be faced on the end of the pipe, a cylindrical band on said ring of greater diameter than the pipe and adapted to extend over the end portion of the pipe spaced radially therefrom, caulking means between the band and the pipe, and a tubular metal extension on said ring radially inward'of said band and on the side of said ring opposite to said band.

HAROLD L. WHITE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

